Type-writing machine.



C. GABRIELSON. TYPE WRITING MACHINE. nrmcnlon rum) mm2?, 199:.

3 SHEETS-SHEET e Patented Feb.7,191`1` C. GABRIELSON.

TYPE WRITING MAGHNB.

APPLICATION FILED JUNE. 27, 1907.

Patented Feb. '7, 1911.

uitrit-nn STATES rzrrnn T onirica.

i CAR-L GABRIELSON, F SYR-ACUS-E, NEW YORK, ASSIGIIOR TO L. C. SMITH 8aBROS.

TYPEWRITER COMPANY', OF SYRACUSE, NEU.' YORK, A CORPORATION 0F NEW'shift lock lever, Fig. o is a Section on the tion of the typewriting`machinito illuetrate the manner of mounting theui: Fri. is z kpivotall)rcarried hy the. segment, and 5 a key lever$ are ivoted at the rear ofthe ina-- chine upon n nlm-unt 7 and normally held;

, l YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent. A

Patented Pel). 7, 1911.

To all ich/)m it may com-ern:

Be it known that l, Cani. G.-tnnnar.sox,.a citizen of the l'nitedStates. and residing at Syra-z-nre, (lnondaga county. State ol' NewYork, have invented certain new and useful E Improvements in'llype-lVriting l\la'11iines,y of which the following is aspecification.

This invention relates; to typcwriting niachines and more particularlyto ease shifting Inechanisin for such machines, that is, mechanism forshifting the type relatively to the platen to etlect the printing otupper or lower case type, and in :he following speeitleation theinvention will be described as applied toa machine in which the segg--nient carrying` the type hara` i shifted vertically. l v

It: will he understood that the invention is equally applicable. toinacliine=A in which the platen is shifted and that it is iunnaterial inwhich direction the shifting movement takes place. l

'The invention will he described in lconnection with the accompanyingdrawing, in which,

Figure l'is a plan View 'of the shifting key levers, their connections,and a sintlicient pnr Sectional elevation of the Shift levers at thelet'tfside. of the machine allowingv the nient in its lower position;"5;5. 2l is a view similar to Fig. but4 partly hrolten away and showing'the segment. raised hy one. of the shift. levers; Fig. 4 is a Viewsimilar to Fig. 3, hut showing .the seffmenl raised hy the.

lino 5-5 of Fig. l; Fig. 6 iS a Section on the line tr-J of Fig.

Referring to the drawing, l indicates a Segment which is niovahlc insuitable. guide: in an up and down direction, "J type harA rock shafthaving arms 4 which support the segment. Beneath the rock shaft are. twoshift; keys 5, one ateach Side of the niarhiue for temporarily raisingthe segment. to print upper case letters and at. the left sident' thelnaehine there. is a third key lere-r tl which is adapted to raise thesegna-nt :and lock it in its upper position, which lever is eonnnonlycalled a shift lock lever." The several in their upper positions hyprings S against a top it. llaeh nl the Shift levers 5 carrie anadjltahle piece or plate t). which plate is connected h v a link ll withan arni l of the rock .-hal`t Il. shown the plate l() i5 pivolallyconnected with the lever 5 at' lil and atljuntally connected with thelever hi' int-ans of a #crew ll pawing through a slot in the free end ofthe lever. The. upper ends. ofthe links llfhave pinandslot; connectionsl5' with the nl'nnlt l2 whieh'perlnitV the shalt to he rocked lijk tht`sliilt-loek'lerer t3 without disturbing the levers 5 and theirconnections. By means of the adjustable platea l0. the links ll may heproperly adjusted with relation to the arnis l2 to avoid lost motionwhen the Shift. levers :'i are operated. lt will he seen that uponpressing either lof the shift lovers 5 the Segna-ntv will he. raised toprint upper ease letters. 'llie :drift lock lever t is also providedwith on(l ol the adjustable plates l() and connected hy a link l1 withone of the arms l2 of the rock shaft in the salne manner in which theshiftV leversare connected.

To etl'ect the locking of the segnnent in its upper pos ion the rockshaft. 3 in }no\'ided with a for ardly extending aria lt to which adependinglatch li' is pirotallv connected. v

The latch l? has a shoulder lSwhieh rents upon an adjustable step 19connected with the Shift lool: lever. when the latter is de- .p1-esseri,thus locking the lever down and the segment. up. 'lhe step 1t) iscarried by a plate 20 which, as shown: is adjustably connected totheshift lock lever in the manner in which the 'plates .10 are connectedtothe shift levers.. A spring :'21 connected with the latch l? tends atall times to draw it into engagement with the step 1li.'

It; will he evident that upon depressing the shiftv lool: lever t3 theSegment will he raised, and automatically locked in its raised positionh v the latch l?. l' provide for releasing the latch 17 on the step 1S)upon depresaing the adjacent. Shift lever 5 as follows:

. The latch is provided with an inclined. or

cam, surface. and the. lever 5 is provided with a laterally projertingpin or part 22; adapted to eoiij'ierate willi the incline '32 when theshit tlei'er is dept-eased. ly reference to Fig. `i it'l will he seenthat when the segnient is locked in its upper position the pin orprojection 23 lies directly over the incline 2Q.

Upon depressing the shift lever necting the ke)v lever with the arm ofthe i rock shaft, a latch connected with the rock shaft, and a step onsaid key lever with which the latch cooperates to lock the rock shaft.against movement when the kebv is depressed. 2. In a case shiftingmechanism for typewriters, the combination` with a rock shaft having anarm, of a key lever, a link connecting the key lever with the arm of therock shaft, a latch connected with the rock shaft, and a step on saidkey lever with i which the latch coperates to lock the rock shaft;against movement when the key is depressed, said step beinfcr adjustablyconnected with the key lever. A

3. Ix; a case shifting mechanism for typewriters, the combination with aroel shaft having an arm, of a key lever, a link connecting the ke)1lever with the arm of the rock shaft, a latch connected with the rockshaft, a step on said keylever with which the latch coperates to'loekthe reek shaft i against movement, when the key is depressed, and asecond key lever provided with means for disengaein;Y the latch from theStep. v

4. ln a case shifting mechanism for typewriters. the coniliination .vitha rock shat'l havincr an arm, of a ke)v lever, a link connei-tingr theke)v lever with the arm ot tht` rock shaft, a latch connected with thcrock shaft, and a .step on said key lever with which the latchcooperates .to lock the rock shaft again t movement when the' keY isdepressed, Said link beingadjustablv eonnected to said ke)I lever andsaid step being,r

I also adjustably connected to the key lever.

5. ln a case shifting mechanism for type writing machines, thecombination with-a roel; shaft having a plurality of arms7 of a shiftlock lever having a piirand-.slot connection with one of said arms, ashift lever havingr a -like connection with one or .said

arms, a latch pivotally connecttal to one ot' said arms and providedwith a shoulder adapted to cooperate with a projection on the shift locklevel', a cam or incline on said latch, and a pin or projection on the.shift lever adapted to eof'perate with said cam or incline.

t'. In a ease shifting mechanism [or t vpc writing; machines, thecomlnnation with a rock shaft having' a plurality of arms. ot' two-shift levers, adjustable pieces on said shift levers, and linksconnecting; said adjustable pieces with .said rock shaft arms h y meansof p in-and-slot connections.

ln testimony whereot` I ailix my signature in presence of two witnesses.

CARL GBl-ELSON. Witnesses vCHAs. F. PARSONS,

(1. RAYMOND Renn.

